JP3141831B2 - Connection member for branching of duct piping - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch connecting member for branching a pipe from the middle of the pipe duct to the outside of the duct.

[0002]

2. Description of the Related Art Conventionally, as a piping duct, as shown in FIG. 7, a refrigerant pipe provided between an indoor unit and an outdoor unit of an air conditioner is housed along an outer wall of a building to protect the piping. There are things that improve the aesthetics. This duct is made of a resin such as hard vinyl chloride and has a substantially cylindrical shape having a base A having a bottom surface and both side surfaces and a cover engaging over both side surfaces of the base A, and having a predetermined length. For example, those having a length of 2 m are used by connecting them in the longitudinal direction.

[0003] By the way, if the building is a two-storey house,
When there is an indoor unit on each of the first and second floors and each refrigerant pipe is housed in one duct and piped, it is necessary to branch one refrigerant pipe from inside the duct to outside the duct in the middle of the duct. is there. Therefore, the branch connecting member is connected in the middle of the duct.

FIG. 8 shows an example of a branch connecting member for this type of duct piping. This is disposed between adjacent ends of a plurality of ducts extending in the longitudinal direction, and includes a branch base 11 and a branch cover 13. The branching base 11 and the branching cover 13 are arranged so as to cover over the end of the duct,
Connect adjacent ducts. Also, base 11 for branching
Is provided with an insertion hole 12 for branching a refrigerant pipe or the like provided in the duct to the outside of the duct.

[0005]

However, the above-described one has the following problems. That is, since a dedicated base and a cover are separately required to branch the pipe in the duct to the outside of the duct, the number of parts increases, and the assembly at the time of construction and the parts as shown in FIG. Extra work is required for waterproofing the joints between them, so-called caulking.

[0006] Furthermore, although the duct was originally designed to protect the housing of the pipe and also to improve the aesthetic appearance, a base for branching is used.
Since the 11 and the branch cover 13 are arranged so as to cover from above the duct at the connecting portion of the adjacent duct, the branch connecting member appears to bulge out of the duct, which impairs aesthetic appearance. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a branch connection member for piping in a duct which can be used favorably.

[0008]

In order to achieve the above object, a branch connecting member for a pipe in a duct according to claim 1 is a cover which is engaged between a base having a bottom surface and both side surfaces and between both side surfaces of the base. A branch connecting member that is disposed in the middle of a substantially cylindrical pipe duct from which the pipe is branched out of the duct, and has a cross-sectional shape that is substantially the same as the side surface of the base, and a pair of covers that engage with the cover. And a connecting piece having a tube insertion hole and connecting a pair of the opposing pieces at substantially the same interval between the side surfaces of the base.

[0009] Then, the side end portions of the facing plates, and the formed by providing a hiding member for concealing constituting the seam when the continuous base side and longitudinal ducts.

[0010] Further, the branch connecting member of the duct pipe according to the second aspect is configured such that the concealing piece according to the first aspect is provided separately from the opposing piece.

[0011] The branch connecting members duct pipe according to claim 3, wherein the concealment piece according to claim 2 includes a mounting portion for holding the side edge portions of the facing plates, the mounting portion of the continuously provided duct And a contact portion that contacts the outer surface of the base.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The branch connecting member of the pipe in the duct is made of a resin such as hard vinyl chloride and is formed to have a substantially semi-cylindrical shape. The length in the axial direction is set to, for example, 15 cm, and is disposed between adjacent ends of a plurality of ducts extending in the longitudinal direction. The duct is a duct for accommodating and protecting the refrigerant pipe of the air conditioner as in the related art. That is, using a resin such as hard vinyl chloride as a material, a base A including a bottom surface Aa and both side surfaces Ab and Ab, and both side surfaces Ab and A of the base A
and a cover that engages with b.

As shown in FIG. 2, the branch connecting member includes a pair of opposed pieces 1, 1; a connecting piece 2;
The pair of opposing pieces 1, 1 have substantially the same cross-sectional shape as the side surfaces Ab, Ab of the base A, and the same cover that engages with the base A is engaged. The connecting piece 2 connects the pair of opposing pieces 1 and 1 at substantially the same interval as between the side surfaces Ab and Ab of the base A, and has an insertion hole 3 in the center for branching a pipe in the duct out of the duct. Having.

With this configuration, the conventional branch cover is not required. That is, since only one cover needs to be engaged with both the base A and the branching connection member, it is possible to save the trouble of separately arranging the branching cover, thereby reducing the man-hour during construction. In addition, since there is no seam between the cover and the branch cover, the seam to be coked is reduced by that much, and the labor required for coking is reduced. Further, when the side edge of the side surface Ab of the base A is brought into contact with the side edge of the opposing piece 1 of the branching connection member, the two are flush with each other, and one cover is engaged therewith. Since the branching connection member does not appear to bulge out at the connection portion of the duct, and becomes less noticeable in appearance, the appearance is improved.

The duct has a predetermined length, for example, 2 ducts.
It is formed to have a length of m, but depending on the situation at the site of use, one or both of the base A and the cover may be cut with a metal saw or the like to obtain a desired length. There are cases. For example, if the base A is cut, burrs remain on the cut edge, which is very unsightly. In addition, since accurate cutting is not performed, a gap is generated between the side edge of the opposing piece 1 of the branch connection member and the side edge of the side surface Ab of the base A, and it is possible to abut both without a gap. Can not.

Therefore, a concealing piece 4 is provided at a side end of the opposing piece 1. The concealing piece 4 is such that the opposing piece 1 is the side Ab of the base A.
And conceal the seam when connected in the longitudinal direction,
It is made of the same material as the opposing piece 1, but is provided separately from the opposing piece 1. The concealing piece 4 includes a mounting portion 5 for holding the side end of the facing piece 1 and a contact portion 6 that is provided continuously from the mounting portion 5 and abuts against the outer surface of the base A of the duct. It is removable.

With such a concealing piece 4, the joint between the side edge of the opposing piece 1 of the branch connection member and the side edge of the side surface Ab of the base A can be concealed. Since it is small enough to be inconspicuous in the appearance of the duct, the base
Even if A is cut and the seams become irregular, the appearance can be improved.

Although the concealing piece 4 can be formed integrally with the opposing piece 1, the concealing piece 4 can be formed separately, since the branch connecting member can be manufactured using the base A. Manufacturing efficiency is improved. That is, if they are separate, base A
Is processed by a simple technique such as cutting or drilling
And the connecting piece 2 can be formed, and the concealing piece 4 can be molded with a small and simple mold.However, if the concealing piece 4 is integrated, the base A cannot be used, and the This is because a large and complicated mold is required.

Further, the concealing piece 4 is attached to the mounting portion 5 and the contact portion 6.
By being detachable from the opposing piece 1, it can be attached to the opposing piece 1 as necessary,
Side surface Ab of base A having substantially the same cross-sectional shape as opposing piece 1
Can be attached to the device, improving usability.
In particular, when the concealing piece 4 is attached to the facing piece 1,
6 can be used as a positioning guide for the base A. The concealing piece 4 may be fixed using a double-sided tape or the like.

This branch connecting member is used as follows. First, the base A of the duct is installed on the outer wall of the building. At this time, the connecting member for branching is placed on the base such that the insertion hole 3 overlaps the through hole provided on the outer wall of the building.
A, and the side edge of the side surface Ab of the base A abuts against the side edge of the opposing piece 1 of the branching connection member, and the opposing piece 1 of the branching connection member and the side surface Ab of the base A extend in the longitudinal direction. Keep it connected. Here, the contact portion 6 of the concealing piece 4 is
The positioning guide of the base A facilitates the work of arranging the base A. Further, in some cases, the base A is cut, and burrs remain on the end face, or the end face of the branch connecting member cannot be abutted without a gap,
Since the small concealing piece 4 covers the seam, even if the base A is cut, the aesthetic appearance is not impaired.

Next, the refrigerant pipe is housed in a duct. At this time, the pipe that needs to be branched is drawn into the room through the insertion hole 3 of the connecting piece 2 and the through hole of the outer wall.
Then, the cover is disposed so as to engage with both the base A and the branching connection member. That is, it is not necessary to dispose the base cover and the branch cover. Thereafter, as shown in FIG. 6, a joint between the base A and the branch connecting member, a joint between the base A and the outer wall,
A caulking process is applied to the joint between the base A and the branch connecting member and the cover. However, since the branch cover is omitted, the caulking process of the joint between the branch cover and the cover is unnecessary.

[0023]

According to the first aspect of the present invention, the branch connecting member for the pipe in the duct can reduce the time and labor required for construction.
In addition, the appearance can be improved.

Further , even if the side edge of the opposing piece and the side edge of the side surface of the base are not uniform, the appearance can be improved.

Further, the branch connecting member of the pipe in the duct according to the second aspect can be manufactured using the base in addition to the effect of the first aspect , so that the manufacturing efficiency can be improved.

According to the third aspect of the present invention, in addition to the effect of the second aspect , the branch connecting member of the pipe in the duct has a concealing piece that can be attached and detached as necessary, and has a sectional shape substantially the same as that of the facing piece. It can also be mounted on a base with sides. Therefore, usability is improved. Further, when attached to the opposing piece, the abutting portion of the concealing piece can be used as a positioning guide for the base.

[Brief description of the drawings]

FIG. 1 is a perspective view of a use state showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the branching connection member.

FIG. 3 is a sectional view common to the branch connecting member and a base of the duct.

FIG. 4 is a sectional view of a cover of the duct.

FIG. 5 is a perspective view showing a state in which a cover of the duct is engaged with a base and a connecting member for branching.

FIG. 6 is a side view showing the caulking portion.

FIG. 7 is a perspective view showing a conventional example in a use state.

FIG. 8 is an exploded perspective view of the branching connection member.

FIG. 9 is a perspective view showing the caulking portion.

[Explanation of symbols]

 1 Opposite piece 2 Connecting piece 3 Insertion hole 4 Concealment piece 5 Mounting part 6 Contact part A Base Aa Bottom of base Ab Side of base B Cover

Claims (3)

(57) [Claims] 1. A branching pipe which is disposed in the middle of a generally cylindrical pipe duct from a base having a bottom surface and both side faces and a cover which engages between both side faces of the base, and branches the pipe out of the duct. A connecting member, a pair of opposing pieces having substantially the same cross-sectional shape as the side surface of the base and engaged with the cover, and having a through hole for a tube, connecting the pair of opposing pieces at substantially the same interval between the side surfaces of the base a connecting piece which, Ri Na and wherein the pair
At the side end of the piece, it is connected to the side of the base of the duct in the longitudinal direction.
Since the branching connection member within the duct seam ing provided hiding pieces to conceal piping time. 2. The concealing piece is provided separately from an opposing piece.
The branching connection member for a pipe in a duct according to claim 1. 3. The concealing piece sandwiches a side end of an opposing piece.
Mounting part and the base of the duct
3. An abutting portion which abuts on the outer side surface.
Connection member for piping in ducts.